How do I fax using mail merge

I am using ACT 2011. I would like to fax a group of my customers. I am on a tight budget. Is there a fax program that ACT will recognize that is less than $80? I downloaded EssentialFax but it did not work.

This should be a standard service in the ACT software. FaxAdmin is over priced. Seriously... $80 to send a fax!?!?